Bose panaray lt3202 iii 4402 iii 9402 iii 9702 iii mb24 iii and mb12 iii service manual

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2 CONTENTS CAUTION: The Bose ® Panaray LT Loudspeakers contain no user-serviceable parts. To prevent warranty infractions, refer servicing to warranty service stations or factory service. WARRANTY INFORMATION The Bose Panaray LT Model 3202, 4402, 9402, 9702, MB24 and MB12 Series III Loudspeakers are covered by a 5-year transferable limited warranty. PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE. Warranty Information...................................................................................................................................... 2 Specifications............................................................................................................................................... 3-4 Product Description......................................................................................................................................... 5 Part List Notes.................................................................................................................................................. 5 Packing List, Panaray ® LT 3202 ® III Loudspeaker......................................................................................... 6 Figure 1. Panaray LT 3202 III Loudspeaker Packaging View ............................................................................ 6 Packing List, Panaray LT 4402 ® III Loudspeaker........................................................................................... 7 Figure 2. Panaray LT 4402 III Loudspeaker Packaging View ............................................................................ 7 Packing List, Panaray LT 9402TM III Loudspeaker....................................................................................... 8 Figure 3. Panaray LT 9402 III Loudspeaker Packaging View ............................................................................ 8 Packing List, Panaray LT 9702 ® III Loudspeaker........................................................................................... 9 Figure 4. Panaray LT 9702 III Loudspeaker Packaging View ............................................................................ 9 Packing List, Panaray LT MB24 III Bass Loudspeaker................................................................................ 10 Figure 5. Panaray LT MB24 III Bass Loudspeaker Packaging View ............................................................... 10 Packing List, Panaray LT MB12 III Bass Loudspeaker................................................................................ 11 Figure 6. Panaray LT MB12 III Bass Loudspeaker Packaging View ............................................................... 11 Main Part List, Panaray LT 3202 ® III Loudspeaker (see Figure 7) .............................................................. 12 Figure 7. Panaray LT 3202 III Loudspeaker Exploded View............................................................................ 12 Main Part List, Panaray LT 4402 ® III Loudspeaker (see Figure 8) .............................................................. 13 Figure 8. Panaray LT 4402 III Loudspeaker Exploded View............................................................................ 13 Main Part List, Panaray LT 9402 TM III Loudspeaker (see Figure 9) ............................................................ 14 Figure 9. Panaray LT 9402TM III Loudspeaker Exploded View .......................................................................14 Main Part List, Panaray LT 9702 ® III Loudspeaker (see Figure 10) ............................................................ 15 Figure 10. Panaray LT 9702 III Loudspeaker Exploded View .......................................................................... 15 Main Part List, Panaray LT MB24 III Bass Loudspeaker............................................................................. 16 Figure 11. Panaray LT MB24 III Bass Loudspeaker Exploded View ............................................................... 16 Main Part List, Panaray LT MB12 III Bass Loudspeaker............................................................................. 17 Figure 12. Panaray LT MB12 III Bass Loudspeaker Exploded View ............................................................... 17 Disassembly Procedures.......................................................................................................................... 18-20 Test Procedures........................................................................................................................................ 21-22 Model 4402, 9402, 9702, MB24 and MB12 Series III Speaker Test Cable ................................................... 21 Model 3202 III Speaker Test Cable ............................................................................................................... 21 Loudspeaker Wiring Diagrams ................................................................................................................ 22-24 Accessories Used With the Panaray LT Series III Loudspeakers............................................................... 24 High Frequency Compression Driver Diaphragm Replacement Procedure............................................. 25 Service Manual Revision History ................................................................................................................. 26

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3 SPECIFICATIONS MECHANICAL External dimensions, single speaker 9702 ® III: 42.2" H x 22.5" W x 18.0" D (1072 x 572 x 368 mm) 9402TM III: 34.6" H x 22.5" W x 23.7" D (879 x 572 x 604 mm) 4402® III: 34.0" H x 18.5" W x 24.0" D (884 x 471 x 610 mm) 3202® III: 42.2" H x 22.5" W x 35.9" D (1072 x 573 x 913 mm) MB24 III: 28.1" H x 20.0" W x 25.5" D (712 x 508 x 647 mm) MB12 III: 14.5" H x 20.0" W x 25.5" D (368x 508 x 647 mm) System weight, unpackaged single speaker 9702 III: 95.5 lbs (43 kg) 9402 III: 113.0 lbs (51 kg) 4402 III: 111.1 lbs (50 kg) 3202 III: 194.0 lbs (88 kg) MB24 III: 129.0 lbs (59 kg) MB12 III: 65.0 lbs (29.5 kg) System weight, packaged single speaker 9702 III: 123.5 lbs (56 kg) 9402 III: 145.5 lbs (66 kg) 4402 III: 141.1 lbs (64 kg) 3202 III: 240.7 lbs (109 kg) MB24 III: 147.0 lbs (67 kg) MB12 III: 74 lbs (34 kg) ELECTRICAL Driver Complement 9702 III: Mid Freq: two V2 drivers High Freq: one 1.4" compression driver 9402 III: Mid Freq: two V2 drivers High Freq: one 1.4" compression driver 4402 III: Mid Freq: two V2 drivers High Freq: one 1.4" compression driver 3202 III: Mid Freq: four V2 drivers High Freq: one 1.4" compression driver MB24 III: Two 12" low frequency drivers MB12 III: One 12" low frequency driver Sensitivity (dB SPL, 1Watt at 1 meter) 9702 III: Mid 105, High 104, Passive 104 9402 III: Mid 106, High 106, Passive 106 4402 III: Mid 106, High 107, Passive 108 3202 III: Mid 111, High 107, Passive 110 MB24 III: Parallel Mode 94, Discrete Mode 91 (per driver) MB12 III: Discrete Mode 91